Guideline Replaces AUM with Employer SaaS
Kevin Busque and Steven Wu, CEO and CFO of Guideline, on the 401(k) and payroll ecosystem
This is why old 401(k) providers largely ignored small businesses and first time savers. Their economics depended on skimming a percentage of money already in the account, so a startup with ten employees and little retirement balance produced almost no revenue. Guideline changed the monetization model by charging employers software fees and automating setup, payroll deductions, and compliance work that legacy providers handled through a chain of recordkeepers, TPAs, and advisors.
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Legacy incumbents like Fidelity and Vanguard were built around AUM fees, often 1% to 2%, which worked best when employees already had meaningful balances. That made affluent workforces attractive, and left smaller firms with low balances poorly served.
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The new digital 401(k) cohort, including Guideline, Human Interest, Betterment, and Vestwell, rebuilt the product as an online portal tied into payroll systems like Gusto and QuickBooks. That let them pull employee data automatically and sell through payroll marketplaces instead of manual broker channels.
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Guideline pushed the model further by using employer paid SaaS pricing and building more of its own ledger and onboarding flow. That shifted growth from waiting for balances to compound, to signing more companies and employees, which is why ARR can grow much faster than AUM alone would suggest.
The market is moving toward retirement products that look and sell more like payroll software than wealth management. As mandates push more SMBs to offer plans, the winners are likely to be platforms that control payroll data, automate compliance, and monetize from employer subscriptions first, then layer on assets, rollovers, IRAs, and adjacent savings products over time.